Drying apparatus.



No. 664,962. Patented lan. l, |90I. A. P. MENDE.

DBYING APPARTUS.-

(Application Bled Oct. 15, 1900.)

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'R W v l 11u/'ef No. 664,962. Patented 1an. l, |901;

A. P. MENDE.

DRYING APPABATU (Application filed Oct. 15, 1900.2

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4| l l l i l l I I II nl hzzzessesr ALEXANDER P. MENDE, oF NEW YORK, N. `Y.

DRYI'NG APPARATUS.

sPEcIFIcArrloN .forming part of Letters Patent No. 664,962,l dated January 1, 190i` Application and omhels, 1to0.A serial Naeaoso. N0 model.) l

To aIZZ' whom t may concern:

Beit known that 1, ALEXANDER P. MENDE', a.

citizen of the United States, and a resident of New York city, county and State of New York, haye invented certain new and useful Improvements in Drying Apparatus, of which the following is-'a specification.

This invention relates to a drying apparatus of improved construction, and more particularly to the means for conveying the steam or other heating medium to th'e shelves that support the material to be dried.

By my invention all exterior steam connections are avoided, leakageis prevented, and

a vertical longitudinal section on line 3 3, Fig.

a structure of superior strength is obtained. The invention consistsfin the various features of construction fully pointedout inthe claims. 1 p

In the accompanying drawings, Figure 1-is a vertical transverse section of' my improved drying apparatus on line 1 1, Fig. 2; Fig. 2, a horizontal section online 2.2, Fig. 1, with the shelves partly broken awayg'and Fig. 3,

1, partly in elevation.

The letter ot represents a shell or casing of rectangular or other form and open, preferably, at both ends. These ends are closed by the doors a', each hung, preferably, on a double hinge, so that it will approach its seat squarely. To this effect th'e door is provided near its centerwith lugs a?, carrying a pintle 0,3, that is surroundedvby the inner end of a link a4. The outer end o f-thislink is pivoted at a5 to the casing a. opened or closed, the link a4-will turn on the outer pintle a5, while the door will turn'on the inner pintle a3 and will thus be centrally supported. Swinging bolts a6 serve to -lock the door when closed against its seat.

Within the casing a are secured aseries of brackets or rails b, adapted to support a series of hollow dryingshel-ves c,arranged above one another and each composed, preferably, of a front and of a rear section, Fig. 2. Each of the shelves may be reinforced by a number ot' interior props cand by a'wrought-iron end plate c2, as shown.

In order to supply the steamor other heat# Whenv the door is ing medium to the shelves, I cast bodilywithin all ofthe shelves cand is then discharged 1 throughthe branches h"h into the exitducts e.

, Thusit-will be seen that all of the shelves are heated uniformly and that as the headers and connections are all arranged withinthe interior of the casing leakage is prevented.

-In rder to exhaust the air 'and also Vthegases and vapors emanating fromI thematerial under treatment, I pro-vide the apparatus with an exhaust-pipe t, communicating with.,

the ai r-pump t. An automatic vacuu m-rega-- lating valve ,7 permits the degree of air rare- -faction to be accurately controlled, this valve` being more particularly described in anotherl application for a patent filed by me oneven date herewith under serial number 33,079 and to which reference is hereby made.

The temperature of the drier is regulated by athermostat, which controls the steam-inlet valves land of which. the pipe l', that contains the expansive medium, is illustrated. f

This thermostat is also more fully shown in the 4 j patent application hereinabove referred to.

The advantagesof my improved drier are y that in it all the exterior COllplings and steam connections are entirely avoided and that increased strength is obtained, while leakage'is prevented.

' -What I claim isp 1. In a drying apparatus, a casing provided with aperforated steam-inlet header and a perforatedsteam-outlet header formed bodily by the wall of the casing, combined with drying-shelves, and branch pipes that connect the headers to said'shelves, substantially as specified.

2. In a drying apparatus, acasing provided with a perforated steam-inlet header and a perforated eieanvou'let header' form ed bodily oy the WAH o 'he casing, eombined with drying-Shelves, branch pipes connected to the headers :md Shelves respectively, and couplings that@ eounee'a seid branch pipes to one another Within the easing, substantially as Specified.

Signed by me at New York city, county and State of New York, this 12th day of October,

ALEXANDER P. MENDE. Witnesses:

JOHN HICKMAN, F. V. BRIESEN. 

